RV-8 Part Number? Rudder Pedal

I need a part number for the left UHMW rudder pedal support block for an RV8A with adjustable pedals.
I have looked all over Van's site and not sure if I have the right one found.
Any help is appreciated.
Thanks,

Drawing 81 shows part # F-874 for the 8 or 8A.

Thanks for the help!